I've played this on other forums, and it's certainly an entertaining waste of time. I'm exceptionally fond of werewolves as well (mostly due to a love of terrible werewolf films as a kid) but it would probably be more fitting to steampunk it a little bit.
Potentially you could set it on an airship and have two Devious Enemy Agents as werewolves, with one Dashing British Intelligence Officer as the seer, with everyone else as idle passengers.
Alternatively set it in Victorian London and have two Rippers with one Scotland Yard Detective. Or even better, have Moriarty + Henchman as werewolves, against Holmes the seer.
I dunno, I can't be bothered to come up with more than that...I suppose it doesn't really matter what you call people. I'm guessing you'd be the moderator; is this going to be more of a for-fun game, or is there more of a roleplay aspect to it? And are you going to introduce any of those other rules listed on that site, like that 'Lovers' alternative or whatever?